Road from Miami to California

[ernesto.panatt]

Hello there! My name is Ernesto Panatt, I'm writing from Chile, south america.
Me and my family are planning to travel between Miami to California and then come back to Miami in 5 weeks (between July 15 and August 20).
We are wondering which cities, states, parks and campings to visit in our tour, and also which do not go.
We love natural spaces, beaches, and a little bit of cities but not too much.
I know this is a pretty wide question, but hope you guys can guide us a little bit!
We already bought an RV that now its in a storage in Miami, and then we have to come back with it to ship it to Chile.
Hope you guys can give us a little advice and recomend us some of the places that we should and those we dont have to visit.
Also and very important is that we have experience with RV roadtrips, we've been using RVs in Chile for years now, and last year we went to the US for a month to travel with our RV.
Bye bye!